<font size=2 face="sans-serif">Hi:</font>
<br>
<br><font size=2 face="sans-serif">This thread reminded me of an article
I saw about 2 years ago, where the researcher had compiled a graph of solar
module start-ups per year up until 2012, with the limiting constraint that
the companies had to UL 1703 listed and qualify for the California Solar
Initiative.</font>
<br>
<br><font size=2 face="sans-serif">Virtually all the companies started
their business less than 10 years ago during the first boom in the second
half of the 2000's. Only three have actually been through a 25 year
warranty period.</font>
<br>
<br><img src=cid:_1_0FD2B5840FD2B1BC0009B77D88257E87>
<br>
<br><font size=2 face="sans-serif">JARMO<br>
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Jarmo Venalainen</b> | </font><font size=1 color=#008000 face="Arial"><b>
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<b>Address:</b> 3700 Gilmore Way, Burnaby, BC V5G4M1 <br>
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<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">From:</font>
<td><font size=1 face="sans-serif">"boB@midnitesolar.com" <boB@midnitesolar.com></font>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">To:</font>
<td><font size=1 face="sans-serif">RE-wrenches <re-wrenches@lists.re-wrenches.org>,
</font>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">Date:</font>
<td><font size=1 face="sans-serif">07/18/2015 11:09 AM</font>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">Subject:</font>
<td><font size=1 face="sans-serif">Re: [RE-wrenches] Trina Module Annual
Degradation</font>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">Sent by:</font>
<td><font size=1 face="sans-serif">"RE-wrenches" <re-wrenches-bounces@lists.re-wrenches.org></font></table>
<br>
<hr noshade>
<br>
<br>
<br><font size=3><br>
Hi Bill<br>
<br>
From what I understand, and I have asked this question to different<br>
people at different companies, the 25 year warranty people hear about<br>
concerning PV is not for a broken panel within 25 years but the<br>
degradation in performance over the years.<br>
<br>
If a PV module just plain old "breaks" (goes to zero output)
in, say<br>
20 years and it has a 25 year degradation warranty, the PV manufacturer,<br>
(if still in business), is not obligated to replace the defective module....<br>
...Even if it resulted from a factory defect.<br>
<br>
I do not know what the warranty period is for manufacturing defects.<br>
I hear warranty times of around 10 years. I am not exactly sure on
that<br>
though.<br>
<br>
Having said all this, there are companies that do replace modules after<br>
their short term memory is up due to manufacturing defects. <br>
Kyocera comes to mind immediately. These are typically larger<br>
companies from what I see.<br>
<br>
I'm just repeating what I have heard over the years regarding PV.<br>
<br>
It just seems to me somewhat misleading the words "25 year warranty".<br>
There may be some companies that actually DO offer a full 25 yr. warranty<br>
these days but what if they aren't around before then ?<br>
<br>
I bet that Bill Hoffer could offer way better information than I can<br>
about this.<br>
<br>
boB<br>
<br>
<br>
On 7/18/2015 3:29 AM, </font><a href=mailto:solar1online@charter.net><font size=3 color=blue><u>solar1online@charter.net</u></font></a><font size=3>
wrote:</font>
<br><font size=3>boB,<br>
Can you expand on the warranty coverage in this situation?<br>
TIA,<br>
Bill<br>
</font>
<p><font size=3>-----------------------------------------</font>
<p><font size=3>From: </font><a href=mailto:boB@midnitesolar.com><font size=3 color=blue><u>"boB@midnitesolar.com"</u></font></a><font size=3>
<br>
To: "RE-wrenches"<br>
Cc: <br>
Sent: Thu, 16 Jul 2015 19:01:32 -0700<br>
Subject: Re: [RE-wrenches] Trina Module Annual Degradation<br>
<br>
<br>
<br>
It's too bad that when a module goes to a REAL high degradation, like,
<br>
100% down to nothing<br>
before that 25 year "warranty" is up, that it is NOT considered
<br>
degradation and is not covered<br>
under "warranty".<br>
<br>
P.S. This has nothing to do with Trina or any PV company in particular.<br>
<br>
boB<br>
<br>
On 7/16/2015 6:24 PM, jay wrote:<br>
> HI Peter,<br>
><br>
> I\u2019ll bite.<br>
><br>
> From the folks I know who deal with multi mega watt systems, are seeing
less than that level of degradation.<br>
><br>
> That said, the standard module 25 yr warranty to 80% is just on .7%
year if I have my math correct.<br>
><br>
> jay<br>
><br>
> peltz power<br>
><br>
><br>
><br>
><br>
>> On Jul 16, 2015, at 9:08 AM, Peter Parrish </font><a href=mailto:peter.parrish@calsolareng.com><font size=3 color=blue><u><peter.parrish@calsolareng.com></u></font></a><font size=3>
wrote:<br>
>><br>
>> I have recently been in discussion with a company that builds
a large number<br>
>> of medium-sized PV ground mount system (30 kW to over 100 kW).
They claim<br>
>> that they have been seeing something on the order of 0.7% annual
degradation<br>
>> in the output of their systems due to intrinsic degradation in
the PV<br>
>> modules. They also claim that this number is supported by the
PV module<br>
>> manufacturer. Many years ago (2007?) I remember reading a report
containing<br>
>> data gathered by NREL that showed the number was about 0.4%, and
I thought<br>
>> the number was actually decreasing over time.<br>
>><br>
>> The module in question is the Trina TSM-310 (PA14.8, I believe,
if it makes<br>
>> any difference).<br>
>><br>
>> Has anyone read anything recent about annual degradation in general
or Trina<br>
>> modules in particular?<br>
>><br>
>> - Peter<br>
>><br>
>> Peter T. Parrish, Ph.D.<br>
>> President, SolarGnosis<br>
>> 1107 Fair Oaks Ave. Suite 351<br>
>> South Pasadena, CA 91030<br>
>> NABCEP Certified PV Installer #031806-26<br>
>> (323) 839-6108<br>
>> </font><a href=mailto:petertor@pobox.com><font size=3 color=blue><u>petertor@pobox.com</u></font></a><font size=3><br>
>><br>
>><br>
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